Simple extendable, with logging, business logic, metrics, transport and everything separated (decorator pattern) microservice for fetching price for crypto (BTC, ETH, etc...)

Installing protobuffer

Linux

sudo apt install -y protobuf-compiler  

MacOS

brew install protobuff

GRPC and Protobuffer package dependencies

go get -u google.golang.org/protobuf/cmd/protoc-gen-go go install google.golang.org/protobuf/cmd/protoc-gen-go

go get -u google.golang.org/grpc/cmd/protoc-gen-go-grpc go install google.golang.org/grpc/cmd/protoc-gen-go-grpc

NOTE: You should add the protoc-gen-go-grpc to your PATH

PATH="${PATH}:${HOME}/go/bin"

Running the service

make run

Dockerfile run commands

docker build -t cryptfetcher .      
docker run -p 3000:3000 cryptfetcher